CN111883856A - Method for manufacturing lead-acid storage battery - Google Patents
Method for manufacturing lead-acid storage battery Download PDFInfo
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- CN111883856A CN111883856A CN202010506914.0A CN202010506914A CN111883856A CN 111883856 A CN111883856 A CN 111883856A CN 202010506914 A CN202010506914 A CN 202010506914A CN 111883856 A CN111883856 A CN 111883856A
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- acid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a method for manufacturing a storage battery, which comprises the following steps: step 1: adding a first density sulfuric acid solution into a lead-acid storage battery; step 2, electrifying to form; and 3, adding a second density sulfuric acid solution into the lead-acid storage battery through a quantitative acid adding machine. The manufacturing method of the storage battery can accurately obtain the capacity of the lead-acid storage battery and realize flexible production.
Description
Technical Field
The invention relates to the field of storage batteries.
Background
In the process of present lead-acid storage battery manufacturing, the process of internalization formation of battery is all required, the internalization formation method of present battery, for preventing that the acidizing fluid is not enough, all adopt rich solution to become, full acidification becomes promptly, also has the opening about the present acidification kettle, overlaps on the battery acidification hole all the time during the use, and can not separate between the battery, so can not seal and independently store the acidizing fluid yet, can't accurately obtain required battery capacity through ration acidification in the production process, more can't carry out flexible production according to the battery capacity of needs.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for manufacturing a storage battery, which comprises the following steps: step 1: adding a first density sulfuric acid solution into a lead-acid storage battery; step 2, electrifying to form; and 3, adding a second density sulfuric acid solution into the lead-acid storage battery through a quantitative acid adding machine.
The quantitative acid adding machine is a mechanical quantitative acid adding machine;
the quantitative acid adding machine comprises an acid adding pot capable of quantitatively storing acid liquor;
the quantitative acid adding machine is an electric control type quantitative acid adding machine;
further, the density of the first density sulfuric acid solution is between 1.04g/cm3 and 1.28g/cm3, and the density of the second density sulfuric acid solution is between 1.25 and 1.6g/cm 3;
further, in the step 2, the energization is completed.
Further, the relationship between the volume of the metered second density sulfuric acid solution and the second density sulfuric acid solution is
V0Is the final sulfuric acid volume, p0Is the final sulfuric acid density, ω0Is the final sulfuric acid mass fraction, V1Is the volume of sulfuric acid added for the first time, p1Is the sulfuric acid density, omega, of the first addition of acid1Is the mass fraction of sulfuric acid of the first addition of acid, rho2Is the sulfuric acid density, omega, of the second addition of acid2Is added with acid for the second timeThe mass fraction of the sulfuric acid is,
m0m is the mass of pure sulfuric acid precipitated in the formation process1The loss of quality of the electrolyzed water in the formation process.
Furthermore, the acid adding kettle capable of storing a fixed amount of acid liquid comprises a kettle body, wherein an acid injection port, a leakage-proof valve, an acid discharge port and a drain valve are arranged on the kettle body, the leakage-proof valve is used for sealing or opening the acid injection port, and the drain valve is used for sealing or opening the acid discharge port.
Further, the leakage-proof valve comprises a sealing element and an elastic body, wherein the elastic body is positioned at the lower part of the sealing element, and the elastic body pushes the sealing element to seal the acid injection port.
The manufacturing method of the storage battery can accurately obtain the capacity of the lead-acid storage battery and realize flexible production.
Drawings
FIG. 1 is a schematic view of an acid adding kettle of the quantitative acid adding machine of the present invention;
FIG. 2 is another schematic view of the acid adding kettle of the quantitative acid adding machine of the present invention.
Detailed Description
The invention is further described with reference to specific examples.
The manufacturing method of the storage battery comprises the following steps: step 1, adding a sulfuric acid solution with a first density into a lead-acid storage battery to be formed, wherein the first density is preferably 1.04g/cm 3-1.28 g/cm 3; step 2, electrifying to form; and 3, adding a second density sulfuric acid solution into the battery, wherein the second density is preferably 1.25-1.6 g/cm3(25 ℃), and the capacity of the formed sulfuric acid solution with the first density is lower, so that the density of the added sulfuric acid solution with the second density is higher than that of the sulfuric acid solution with the first density in order to achieve the required battery capacity, and manufacturers can add the sulfuric acid solutions with the second densities and different volumes according to different use conditions, thereby providing greater convenience for producing batteries with different capacities and different purposes. The density of the added sulfuric acid can be accurately determined, the situation that the added density is too low to reach the capacity and the energy is wasted due to too high density is avoided, and the production efficiency in the production process is improved. In addition, the conversion rate of the lead dioxide at the end of the electrified formation in the step 2 is between 75 and 92 percent, and the sulfuric acid is added in the step 3. The first addition of the low-density sulfuric acid solution can be 1 addition of the low-density sulfuric acid solution or multiple additions of the low-density sulfuric acid solution, and when the low-density sulfuric acid solution is added multiple times, the volume of the low-density sulfuric acid solution added at the next time is preferably larger than that of the low-density sulfuric acid solution added at the previous time. The second addition of the high-density sulfuric acid solution can be 1 addition of the high-density sulfuric acid solution or multiple additions of the high-density sulfuric acid solution, and when the high-density sulfuric acid solution is added multiple times, the volume of the high-density sulfuric acid solution added at the next time is preferably smaller than that of the high-density sulfuric acid solution added at the previous time.
Example 1
The semi-finished product of the battery with 6-DZF-20 glue sealed off line is taken, the method is adopted for acid addition and formation, and the sample preparation process is as follows:
1) adding acid for the first time, namely adding a sulfuric acid solution with the first density of 1.07g/cm3 into the lead storage battery to be added with acid for 140ml, wherein the acid can be added for multiple times, namely 60ml for the first time and 80ml for the next time. And adding acid by using a vacuum acid adding machine.
2) And (3) placing the battery subjected to the first acid adding in a water bath, connecting a charging wire clamp, starting a charger, and performing the process according to the process in the table 1.
TABLE 16-DZF-20 Process
3) And (5) when the formation is finished and the charge capacity reaches 126Ah, and the content of PbO2 reaches about 88%, completely forming, namely completely forming, and finishing the conversion of the basic lead sulfate and the lead oxide. The battery capacity at this time was 4 AH.
4) To achieve a battery with a battery capacity of 20AH, a second density of acid used only as an energy material was initially added to the battery. The density and volume of the second addition of acid were calculated as follows:
a. according to the design capacity of the battery, the final volume V of sulfuric acid for the design of the battery is determined0167.69ml, increased in volume V after acidificationt161.13ml, final sulfuric acid density ρ01.360g/cm3, and finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid0＝45.3％；
b. The mass of pure sulfuric acid introduced into the lead plaster in the plaster mixing process and separated out in the formation process is m0＝16.49g；
c. Volume V of sulfuric acid of the first addition1140ml, sulfuric acid density ρ11.07g/cm3 and mass fraction ω19.3 percent; d. loss mass m of electrolyzed water in formation process1＝30g；
e. The mass fraction of the sulfuric acid added for the second time is as follows:
finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid2Corresponding density ρ2＝1.65g/cm3
f. The volume of the second addition of sulfuric acid was:
the acid can be added in multiple times, 40ml for the first time and 20ml for the second time.
The addition of the acid at the second density to the cell is initiated. And adding acid by adopting a quantitative acid adding machine, wherein the quantitative acid adding machine comprises an acid adding pot capable of quantitatively storing acid liquor, and the acid liquor is firstly added into the acid adding pot capable of quantitatively storing the acid liquor. And connecting an acid adding kettle with a battery injection hole, and quantitatively injecting acid liquid with a second density into the battery, wherein the acid density of the second density is 1.65g/cm3, and the adding amount of the acid with the second density is 60 ml. After the acid addition was complete, the procedure of Table 1 was continued.
5) Acid extraction is avoided after the formation is finished.
Example 2
The semi-finished product of the battery with 6-DZF-20 glue sealed off line is taken, the method is adopted for acid addition and formation, and the sample preparation process is as follows:
1) adding acid for the first time, namely adding a sulfuric acid solution with a first density and a density of 1.17g/cm3 into the lead storage battery to be added, wherein the acid volume is 145ml, and the acid can be added for multiple times, namely 60ml for the first time and 85ml for the next time. And adding acid by using a vacuum acid adding machine.
2) And (3) placing the battery subjected to the first acid addition in a water bath, connecting a charging wire clamp, starting a charger, and performing the process according to the process 1 in the table.
3) And (3) when the formation is finished and the charge amount reaches 126Ah, and the content of PbO2 reaches about 81 percent, partially forming, namely incomplete conversion of basic lead sulfate and lead oxide. The battery capacity at this time was 6 AH.
4) To achieve a cell capacity of 20AH, a second density of acid is initially added to the cell. The density and volume of the second addition of acid were calculated as follows:
a. according to the design capacity of the battery, the final volume V of sulfuric acid for the design of the battery is determined0167.69ml, increased in volume V after acidificationt161.13ml, final sulfuric acid density ρ01.360g/cm3, and finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid0＝45.3％；
b. The mass of pure sulfuric acid introduced into the lead plaster in the plaster mixing process and separated out in the formation process is m0＝16.49g；
c. Volume V of sulfuric acid of the first addition1145ml sulfuric acid density p11.17g/cm3 and mass fraction ω122.9%; d. loss mass m of electrolyzed water in formation process1＝30g；
e. The mass fraction of the sulfuric acid added for the second time is as follows:
finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid2Corresponding density ρ2＝1.50g/cm3
f. The volume of the second addition of sulfuric acid was:
the acid can be added in multiple times, 30ml for the first time and 23ml for the last time.
The addition of the acid at the second density to the cell is initiated. And adding acid by adopting a quantitative acid adding machine, wherein the quantitative acid adding machine comprises an acid adding pot capable of quantitatively storing acid liquor, and the acid liquor is firstly added into the acid adding pot capable of quantitatively storing the acid liquor. And connecting the acid adding kettle with the battery liquid injection hole, and quantitatively injecting acid liquid with a second density into the battery. The second density acid had a density of 1.50g/cm3 and 53ml of the second density acid was added. After the acid addition was complete, the procedure of Table 1 was continued.
5) Acid extraction is avoided after the formation is finished.
Example 3
The semi-finished product of the battery with 6-DZF-20 glue sealed off line is taken, the method is adopted for acid addition and formation, and the sample preparation process is as follows:
1) adding acid for the first time, namely adding a sulfuric acid solution with the first density of 1.28g/cm3 into the lead storage battery to be added with acid for the first time, wherein the acid adding volume is 155ml, and the acid can be added for multiple times, namely 60ml for the first time and 95ml for the last time. And adding acid by using a vacuum acid adding machine.
2) And (3) placing the battery subjected to the first acid adding in a water bath, connecting a charging wire clamp, starting a charger, and performing the process according to the process in the table 1.
3) And (5) when the formation is finished and the charge amount reaches 126Ah, and the content of PbO2 reaches about 77%, partially forming, namely, the conversion of basic lead sulfate and lead oxide is not finished. At this time, the battery capacity is 13 AH.
4) To achieve a cell capacity of 20AH, a second density of acid is initially added to the cell. The density and volume of the second addition of acid were calculated as follows:
a. according to the design capacity of the battery, the final sulfuric acid volume of the battery design is firstly determinedV0167.69ml, increased in volume V after acidificationt161.13ml, final sulfuric acid density ρ01.360g/cm3, and finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid0＝45.3％；
b. The mass of pure sulfuric acid introduced into the lead plaster in the plaster mixing process and separated out in the formation process is m0＝16.49g；
c. Volume V of sulfuric acid of the first addition1155ml, sulfuric acid density ρ11.28g/cm3 and mass fraction ω136.4%; d. loss mass m of electrolyzed water in formation process1＝30g；
e. The mass fraction of the sulfuric acid added for the second time is as follows:
finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid2Corresponding density ρ2＝1.21g/cm3
f. The volume of the second addition of sulfuric acid was:
the acid can be added in multiple times, 32ml for the first time and 10ml for the second time.
The addition of the acid at the second density to the cell is initiated. And adding acid by adopting a quantitative acid adding machine, wherein the quantitative acid adding machine comprises an acid adding pot capable of quantitatively storing acid liquor, and the acid liquor is firstly added into the acid adding pot capable of quantitatively storing the acid liquor. And connecting the acid adding kettle with the battery liquid injection hole, and quantitatively injecting acid liquid with a second density into the battery. The second density acid had a density of 1.21g/cm3 and was added in an amount of 42ml of the second density acid. After the acid addition was complete, the procedure of Table 1 was continued.
5) Acid extraction is avoided after the formation is finished.
In the method for manufacturing the storage battery, the second-density sulfuric acid solution can be added in the step 3 by adopting a quantitative acid adding machine for adding acid, the quantitative acid adding machine comprises an acid adding kettle capable of quantitatively storing acid liquor, as shown in figures 1 and 2, the invention provides the acid adding kettle, which comprises a kettle body 1, an acid injection port 4 is formed in the upper part of the kettle body, a leakage-proof valve 5 is connected to the lower part of the acid injection port 4, and a sealing element is arranged on the inner upper part of the leakage-proof valve 5, such as: the rubber seals the valve body 9, and the lower part is provided with an elastomer, such as a rubber marble 10. When acid is injected into the kettle body 1, the acid liquor is connected with the acid injection port 4 through the acid injection nozzle of the acid adding machine and presses the rubber sealing valve body 9 downwards, so that the rubber ball 10 is extruded and deformed, a gap is formed between the rubber sealing valve body 9 and the top cover of the kettle body 1, and the acid liquor is injected into the kettle body 1. After the acid adding is finished, the acid injection nozzle of the acid adding machine is removed, the rubber marble 10 recovers deformation, the rubber sealing valve body 9 is jacked up to realize sealing with the top cover of the kettle body 1, and the acid liquor is stored in the kettle body 1. The lower part of the kettle body 1 is provided with a rubber acid discharge port 7, a pull rod drain valve 6 is arranged in the kettle body 1 and can move up and down, the lower end of the pull rod drain valve 6 seals the kettle body 1 through a sealing rubber ring 11 arranged in the lower part of the kettle body 1, and the upper end of the pull rod drain valve 6 penetrates through an opening in the upper end of the kettle body 1 and seals the kettle body 1 through a sealing rubber ring 8 arranged in the opening. The top ends of a plurality of pull rod drain valves 6 are connected through a cross rod 2, and a travel limit sleeve 3 is arranged to limit the linear movement of the pull rod drain valves 6, and the travel limit sleeve 3 is fixed on the kettle body 1. When acid liquor is discharged from the kettle body 1, the rubber acid discharge port 5 is connected to an acid injection nozzle on the top of a common acid adding kettle or an acid injection nozzle of a battery middle cover, the pull rod drain valve 6 is pulled upwards, the lower end is separated from the sealing rubber ring 11, and the acid liquor is discharged. After acid is discharged, the pull rod drain valve 6 is pressed downwards, so that the lower end of the pull rod is sealed with the sealing rubber ring 11, and acid can be repeatedly injected into the kettle body 1. In this embodiment, the pull rod type drain valve 6 moves linearly, and may rotate as necessary, or other ways to seal and open the drain opening may be implemented. The pot body 1 of the invention can be arranged into a plurality of bodies according to the requirement.
Besides the above-mentioned modes, the quantitative acid adding machine of the present invention can also realize the quantitative acid adding machine of mechanical quantitative acid adding by other suitable mechanical structure modes, such as arranging a suction type or overflow type quantitative cylinder device in the acid adding machine, and the quantitative acid adding machine of the present invention can also be a quantitative acid adding machine of electric control quantitative acid adding by an electric control mode, such as a plunger type or cylinder type quantitative cylinder device controlled by a servo motor and an electromagnetic valve.
The quantitative acid adding machine provided by the invention realizes quantitative acid adding, can realize no acid pumping, and can also select proper sulfuric acid density to realize the capacity required after formation.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (7)
1. A method for manufacturing a lead-acid battery, characterized by comprising the steps of: step 1: adding a first density sulfuric acid solution into a lead-acid storage battery; step 2, electrifying to form; and 3, adding a second density sulfuric acid solution into the lead-acid storage battery through a quantitative acid adding machine.
2. The method of claim 1, wherein the acid dosing machine is a mechanical acid dosing machine.
3. The method for manufacturing a lead-acid battery according to claim 2, wherein the acid adding pot is an acid adding pot capable of storing a certain amount of acid.
4. The method according to claim 1, wherein the quantitative acid feeder is an electrically controlled quantitative acid feeder.
5. The method for manufacturing a lead-acid storage battery according to any one of claims 1 to 4, wherein the density of the first density sulfuric acid solution is between 1.04g/cm3 and 1.28g/cm3, and the density of the second density sulfuric acid solution is between 1.25 and 1.6g/cm 3.
6. The method according to claim 5, wherein in the step 2, the energization is complete.
7. The method of claim 6, wherein the volume of the second density sulfuric acid solution dosed is related to the second density sulfuric acid solution
V0Is the final sulfuric acid volume, p0Is the final sulfuric acid density, ω0Is the final sulfuric acid mass fraction, V1Is the volume of sulfuric acid added for the first time, p1Is the sulfuric acid density, omega, of the first addition of acid1Is the mass fraction of sulfuric acid of the first addition of acid, rho2Is the sulfuric acid density, omega, of the second addition of acid2Is the mass fraction of the sulfuric acid added for the second time,
m0m is the mass of pure sulfuric acid precipitated in the formation process1The loss of quality of the electrolyzed water in the formation process.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2020/073066 WO2021142853A1 (en) | 2020-01-19 | 2020-01-19 | Fabrication method for lead-acid storage battery |
| PCT/CN2020/073065 WO2021142852A1 (en) | 2020-01-19 | 2020-01-19 | Method for manufacturing lead-acid battery |
| CNPCT/CN2020/073065 | 2020-01-19 | ||
| CNPCT/CN2020/073066 | 2020-01-19 |
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| CN111883856A true CN111883856A (en) | 2020-11-03 |
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| CN202010506914.0A Pending CN111883856A (en) | 2020-01-19 | 2020-06-05 | Method for manufacturing lead-acid storage battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008130516A (en) * | 2006-11-24 | 2008-06-05 | Furukawa Battery Co Ltd:The | Liquid lead-acid storage battery |
| CN107742749A (en) * | 2017-10-31 | 2018-02-27 | 陕西凌云蓄电池有限公司 | A kind of acid-adding method of valve-control sealed lead acid battery |
| CN109148815A (en) * | 2018-07-18 | 2019-01-04 | 天能电池集团有限公司 | A kind of long-life lead storage battery acid adding chemical synthesizing method |
| CN109616703A (en) * | 2018-09-28 | 2019-04-12 | 骆驼集团蓄电池研究院有限公司 | A kind of spirally wound lead acid battery sealing chemical synthesizing method |
| CN209119216U (en) * | 2019-01-14 | 2019-07-16 | 骆驼集团襄阳蓄电池有限公司 | A kind of liquid quantitative system and acid adding machine |
-
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- 2020-06-05 CN CN202010506914.0A patent/CN111883856A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008130516A (en) * | 2006-11-24 | 2008-06-05 | Furukawa Battery Co Ltd:The | Liquid lead-acid storage battery |
| CN107742749A (en) * | 2017-10-31 | 2018-02-27 | 陕西凌云蓄电池有限公司 | A kind of acid-adding method of valve-control sealed lead acid battery |
| CN109148815A (en) * | 2018-07-18 | 2019-01-04 | 天能电池集团有限公司 | A kind of long-life lead storage battery acid adding chemical synthesizing method |
| CN109616703A (en) * | 2018-09-28 | 2019-04-12 | 骆驼集团蓄电池研究院有限公司 | A kind of spirally wound lead acid battery sealing chemical synthesizing method |
| CN209119216U (en) * | 2019-01-14 | 2019-07-16 | 骆驼集团襄阳蓄电池有限公司 | A kind of liquid quantitative system and acid adding machine |
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